Improvement in liquid-meters



NAPEI'ERS, FHOTO-LITHOGRAPHER. wAsHmrToN D C this invention.

'i Nirnn STATES PATENT QFFICE. l

ALBERT wEBcKMEIsrBB, or BERLIN, reussite IMPROVEMENT IN LIQUID-METERS.

Specification forming part of Letters Patent vNo. 109,564, dated November 22, leO.

iro all whom, it may concern,.-

Be it known that I, ALBERT VERcKMEIs- TER, of Berlin, in the Kingdom of Prussia, have invented a new and` Improved Fluid- Meter 5 and I do hereby declare the following to be a full, clear, and exact description thereof, which will enable those skilled in the art to make and-use the same, reference being had to the accompanying drawings, forming part of this specification, in which drawings- Figure l represent-s a plan or top view of Fig. 2 is a vertical section of the same taken in the plane indicated by the line x m, Fig. l. Fig. 3 is a similar section of the same, the line y y, Fig. 1, indicating the plane of section. Fig. 4 is a similar section of the same taken in the plane indicated by the line z z, Fig. l.

Similar letters indicate corresponding in all the figures.

This invention relates to an apparatus composed of two measuring-chambers which are supplied with liquid through a common feed' pipe, the iiow and discharges of liquid to each chamber being regulated automatically by means of floats. The iioats which regulate the supply of liquid to each chamber act upon a lever from which are suspended two valves which alternately close the communication between the feed-pipe and the chambers. The

parts iioats which regulate the discharge act on si-' phons having iieXible connections between their legs, each siphon being composed of a stationary and of a movable leg, so that, if the movable leg is depressed, so as to submerge the bight of thesiphon below the surface of the liquid, the siphon iills and the liquid dis charges, and when the mouth of the movable leg is raised above the surface of the liquid the siphon empties and the discharge of the liquid stops. v

In the drawings, the letter A designates a vessel which is divided by a partition," a, in two measuring-chambers, b b. rEhese measuring-chambers are supplied with liquid th rough a feed-pipe, c, which rises from the top of a closed chamber, d, which communicates by means of a pipe, e, with a closed chamber, f. from the bottom of which extend two nozzles, g g', one into each of the measuring-chambers b b. The bottom edges of these nozzles form the seats for the valves lz, 71", which are secured to rodst i. (Best seen in Fig. 2 of the drawings.) These rods are suspended from links 7' j,which are connected to an oscillating-lever, la, having its fulcrum on a pivot, Z, secured in a standard, nvt, which rises from the top of the vessel A. The position of the lever la is controlled by two oats, a n, which are vsuspended from'rods m m, being situated one in each of the measuring-chambers b b, and when the position of said lever-has been changed by the action of the floats it is retained by a balance-weight, which also serves to trip it rapidly, whenever the floats raise one of its ends to the proper height. As the chamber vb is being iilled the iioat a rises and the lever kis thrown in the position shown in Fig. 2, the nozzle g is closed, and the nozzle g opened, and the liquid begins to flow in the chamber b, and while this chamber is being lled the chamber b is emptied automatically, as follows: Each of the chambers b and b contains a siphon, o and o', and these siphons are so constructed that their receiving ends are connected tothe discharging ends p and p by means of flexible pipes g and g', so that the receiving ends can be raised or depressed. If the chamber b is full and thesiphon ois depressed, soas to sub? merge its bight below the surface of the liquid, this siphon fills and the liquid discharges; and in order to effect a complete discharge, each chamber is provided with a well, r and r, so that the movable legs of the siphons can be depressed below the bottom of their chambers.

The position of the siphons o o is governed by the-floats s s and by levers t t', which are provided with balanceweights u u', so that as soon as one of the levers is raised by the action of the appropriate float it will be suddenly tripped byits balance-weight. By comparing Figs.`2 and 3 of the drawings, it will be noticed that 'the chamber b is receiving liquid while the chamber b discharges. Bythe time this last-named chamber has fully discharged, the chamber b begins to fill, the. float a', Fig. 2, is down, and the float a rises, and thereby the supply to the chamber bis stopped and the supply to the chamber b opened. As soon as the liquid begins to rise in the chamber b the float s (which, when the chamber is empty, is clear down on the bottom of the chamber) begins to rise, the equilibrium of the balance-weight u is disturbed,

the lever t is tripped, the siphon o is depressed, `and the chamber b discharges; and as the float s rises, a button, c', attached to its rod, strikes a tappet-arm 1v, secured to the lever t, and the siphon o is gradually raised, so that its bight will be above the level of the liquid when the chamber b is full, and said` chamber will not commence to discharge until the lever 7c, Fig. 2, has changed its position, and the supply of liquid to said chamber has been stopped.

In order to produce a correct action of the apparatus the floats auf, which control the position of the supply-Valvelever k, are not per A mitted to sink clear downto the bottoms of their chambers, so that the liquid will act on the floats n n', and, furthermore, said floats n n are adjustable on their rods, so that they can be made to trip the supply-valve lever 7c at the proper moment. The buttons 7J u', which act on the tappct# arm w 'w' of the discharge-controlling levers tt', are constructed with hinged arms a2, (see Fig. 4,) and said buttons are allowed to turn,

q so that when one of the floats, s or s', rises its button will strike the tappet 'w' or w and trip the lever, and then turning slightly round slip `past `the same, and rise above it to the position occupied by the button o in Fig. 8, so that the float s will not interfere with the depression of the Siphon o,- and when the float sinksdown the arm at' turns up and allows its button to pass down below the tappet, ready to tripthe lever Iat its subsequent rising.

InA order to produce a correct operation of thisapparatus the area of the cross-section of the discharge siphous and openings ought to be considerably larger than that of the sup-` ply-openings, so that each measuring-chamber will beempty before the liquid in the other` chamber rises high enough to eflect the change in the position of the supply-valve lever.

It must be remarked that the siphous could be replaced by simple valves, to be opened and-closed by the action of the floats s s and levers t t.

liquid discharging from the measuring-chambers can be received in a vessel providedwith a float, which is secured to alever, from which extends a rod through a tubular space in the partition a. To the upper end of this rod is secured a valve, which, when the float rises to a certain height, closes up against a seat formed at the inner end of the feed-pipe, and thereby the supply of liquid is cut oil1 automati cally. y l

That I claim as new, and desire to secure by Letters Patent, irsl. The arrangement of two distinct 1neasuring-chambers, each containing two floats, one to control the supply of fluid and the other to control the discharge of fluid, substantially as described.

. 2. rlhe combination of a movable siphon and float with the measuring-apparatus, substantially as described, to control the discharge of the liquid from the measuring-chambers.

3. The wells r 11', in combination with the measuring-chambers b b and movable siphous o o', substantially as set forth.

4. The hinged arms 66" on the rods of the floats s s, in combination with the trippinglevers t t and movable siphons o o', substantially as described.

ALBERT VVERCKMEISTER.

XVitnesses;

J. H. F. PRILLWITZ, LoUIs MLLER. 

